YouTube Tests Even Higher Quality Videos - Google

YouTube already provides an option to view higher quality versions for some
videos and you can also append "&fmt=18" to the URLs for the other videos.
If you add "&fmt=22", some YouTube videos are now available at an even higher
quality, which makes the full screen view a very useful option. Compare:

http://www.youtube.com/watch?v=zlfKdbWwruY
(standard format - mono, resolution:320x180)

http://www.youtube.com/watch?v=zlfKdbWwruY&fmt=18
(stereo, resolution: 480x270)

http://www.youtube.com/watch?v=zlfKdbWwruY&fmt=22
(new format - stereo, resolution: 1280x720)

To embed a higher quality version of a video, replace
"http://www.youtube.com/v/VIDEO_ID" with
"http://www.youtube.com/v/VIDEO_ID&ap=%2526fmt%3D18" or
"http://www.youtube.com/v/VIDEO_ID&ap=%2526fmt%3D22"
in YouTube's embeddable code.

Unfortunately, the new format (fmt=22) is not available for too many videos,
probably because it's still experimental and most people upload compressed
videos.


http://googlesystem.blogspot.com/2008/11/youtube-tests-even-higher-quality.html


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